SAT Math Practice Question #33313 - SATify | SATify

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SAT Math Practice Question #33313 - SATify | SATify

#33313

algebra

equations

medium

60 sec

If $k (x^{2} + 1) + 5 = (k - 1) (x^{2} + 1) + 12$ , what is the value of $x^{2} + 1$ ?

A.

$k - 7$

B.

$k + 7$

C.

7

D.

17